Life cycle assessment of various hydrogen production methods

Çetinkaya, Eda; Dinçer, İbrahim; Naterer, G.F.

doi:10.1016/j.ijhydene.2011.10.064

Cited by 446 publications

(141 citation statements)

References 7 publications

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“…For SMR the GWP was estimated 12.13 kg CO 2 -eq/kg H 2 being in the range from 8.9 to 12.9 kg CO 2-eq/kg H 2 [10]. For the same process, Cetinkaya et al [8] report a GWP value of 11.893 while Spath and Mann [5] report a value 11.8 kg CO 2-eq/kg H 2 . Even, in the fossil-based system can offer promising improvement of the environmental performance when integrated with carbon capture and storage [51].…”

Section: Midpoint Environmental Performancementioning

confidence: 98%

“…By applying high-temperature steam to the CH 4 , carbon monoxide, syngas mixtures (various combinations of hydrogen and carbon monoxide), steam, and electric power for customer use are created. Many life cycle assessment studies have investigated the LCA of the hydrogen via natural gas steam reforming to examine the environmental benefits and drawbacks of the competing systems [5,8,23]. The process flowchart and a mass balance diagram of the system under study are presented by James [27].…”

Section: Hydrogen Production Technologies and Inventorymentioning

confidence: 99%

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Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

et al. 2018

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A common sustainability issue, arising in production systems, is the efficient use of resources for providing goods or services. With the increased interest in a hydrogen (H 2 ) economy, the life-cycle environmental performance of H 2 production has special significance for assisting in identifying opportunities to improve environmental performance and to guide challenging decisions and select between technology paths. Life cycle impact assessment methods are rapidly evolving to analyze multiple environmental impacts of the production of products or processes. This study marks the first step in developing process-based streamlined life cycle analysis (LCA) of several H 2 production pathways combining life cycle impacts at the midpoint (17 problem-oriented) and endpoint (3 damage-oriented) levels using the state-of-the-art impact assessment method ReCiPe 2016. Steam reforming of natural gas, coal gasification, water electrolysis via proton exchange membrane fuel cell (PEM), solid oxide electrolyzer cell (SOEC), biomass gasification and reforming, and dark fermentation of lignocellulosic biomass were analyzed. An innovative aspect is developed in this study is an analysis of water consumption associated with H 2 production pathways by life-cycle stage to provide a better understanding of the life cycle water-related impacts on human health and natural environment. For water-related scope, Water scarcity footprint (WSF) quantified using Available WAter REmaining (AWARE) method was applied as a stand-alone indicator. The paper discusses the strengths and weaknesses of each production pathway, identify the drivers of environmental impact, quantify midpoint environmental impact and its influence on the endpoint environmental performance. The findings of this study could serve as a useful theoretical reference and practical basis to decision-makers of potential environmental impacts of H 2 production systems.

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Section: Midpoint Environmental Performancementioning

confidence: 98%

Section: Hydrogen Production Technologies and Inventorymentioning

confidence: 99%

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

et al. 2018

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“…Many studies have been published that report life cycle approaches to the hydrogen production process. For example, life cycle inventory (LCI) analyses have been published that calculate the life cycle GHG emissions for hydrogen produced from steam reforming of NG [27][28][29][30][31][32], coal gasification [29,31,32], and renewably powered electrolysis of water [30][31][32][33]. Specifically, Kato [34] took an economic approach and estimated the final cost in Japan of hydrogen produced in South Australia, Norway and the Middle East.…”

Section: Introductionmentioning

confidence: 99%

Assessing Uncertainties of Well-To-Tank Greenhouse Gas Emissions from Hydrogen Supply Chains

Ozawa

Inoue²,

Kitagawa

et al. 2017

Sustainability

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Abstract:Hydrogen is a promising energy carrier in the clean energy systems currently being developed. However, its effectiveness in mitigating greenhouse gas (GHG) emissions requires conducting a lifecycle analysis of the process by which hydrogen is produced and supplied. This study focuses on the hydrogen for the transport sector, in particular renewable hydrogen that is produced from wind-or solar PV-powered electrolysis. A life cycle inventory analysis is conducted to evaluate the Well-to-Tank (WtT) GHG emissions from various renewable hydrogen supply chains. The stages of the supply chains include hydrogen being produced overseas, converted into a transportable hydrogen carrier (liquid hydrogen or methylcyclohexane), imported to Japan by sea, distributed to hydrogen filling stations, restored from the hydrogen carrier to hydrogen and filled into fuel cell vehicles. For comparison, an analysis is also carried out with hydrogen produced by steam reforming of natural gas. Foreground data related to the hydrogen supply chains are collected by literature surveys and the Japanese life cycle inventory database is used as the background data. The analysis results indicate that some of renewable hydrogen supply chains using liquid hydrogen exhibited significantly lower WtT GHG emissions than those of a supply chain of hydrogen produced by reforming of natural gas. A significant piece of the work is to consider the impacts of variations in the energy and material inputs by performing a probabilistic uncertainty analysis. This suggests that the production of renewable hydrogen, its liquefaction, the dehydrogenation of methylcyclohexane and the compression of hydrogen at the filling station are the GHG-intensive stages in the target supply chains.

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“…This method is investigated to accelerate the in-liquid plasma reaction [25][26][27][28]. The chemical reactions of discharge in water are used for purification of polluted water [29][30][31]. In general, the process of discharge in a liquid is a more complicated phenomenon than that in a gas, because discharges in a liquid are unstable and involve phase transitions.…”

Section: A Novel Methods For Producing Hydrogen From a Hydrocarbon Liquidmentioning

confidence: 99%

A Novel Method for Producing Hydrogen from a Hydrocarbon Liquid Using Microwave In-liquid Plasma

Mochtar¹,

Nomura²,

Mukasa³

et al. 2016

JEPE

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Abstract:The in-liquid plasma method is a technology in which plasma of several thousand degrees Kelvin is generated within bubbles in a liquid. The purpose of this study is to enhance the hydrogen production rate from waste oils by using in-liquid plasma. Two types of microwave in-liquid plasma apparatus are adopted for hydrogen production. One is a conventional MW (microwave) oven, the other is a microwave generator with a waveguide to apply the in-liquid plasma steam reforming method in n-dodecane. The produced gas is 58%-90% hydrogen in these methods. The hydrogen production rate is improved by stabilization of the bubble growth. The gas production rate by plasma feeding steam in n-dodecane is 1.4 times higher than that without feeding steam.

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Life cycle assessment of various hydrogen production methods

Cited by 446 publications

References 7 publications

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

Assessing Uncertainties of Well-To-Tank Greenhouse Gas Emissions from Hydrogen Supply Chains

A Novel Method for Producing Hydrogen from a Hydrocarbon Liquid Using Microwave In-liquid Plasma

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